/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

// #include <dirent.h>
 #include <fcntl.h>
// #include <limits.h>
// #include <stdbool.h>
// #include <stdint.h>
// #include <sys/inotify.h>
// #include <sys/stat.h>
// #include <sys/types.h>
// #include <unistd.h>

// #include "alloc-util.h"
// #include "errno-util.h"
// #include "time-util.h"

// #define MODE_INVALID ((mode_t) -1)

/* The following macros add 1 when converting things, since 0 is a valid mode, while the pointer
 * NULL is special */
// #define PTR_TO_MODE(p) ((mode_t) ((uintptr_t) (p)-1))
// #define MODE_TO_PTR(u) ((void *) ((uintptr_t) (u)+1))

// int unlink_noerrno(const char *path);
// 
// int rmdir_parents(const char *path, const char *stop);
// 
// int rename_noreplace(int olddirfd, const char *oldpath, int newdirfd, const char *newpath);
// 
// int readlinkat_malloc(int fd, const char *p, char **ret);
// int readlink_malloc(const char *p, char **r);
// int readlink_value(const char *p, char **ret);
// int readlink_and_make_absolute(const char *p, char **r);
// 
// int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid);
// int fchmod_and_chown_with_fallback(int fd, const char *path, mode_t mode, uid_t uid, gid_t gid);
// static inline int fchmod_and_chown(int fd, mode_t mode, uid_t uid, gid_t gid) {
//         return fchmod_and_chown_with_fallback(fd, NULL, mode, uid, gid); /* no fallback */
// }
// 
// int fchmod_umask(int fd, mode_t mode);
// int fchmod_opath(int fd, mode_t m);
// 
// int futimens_opath(int fd, const struct timespec ts[2]);
// 
// int fd_warn_permissions(const char *path, int fd);
// int stat_warn_permissions(const char *path, const struct stat *st);
// 
// #define laccess(path, mode)                                             \
//         (faccessat(AT_FDCWD, (path), (mode), AT_SYMLINK_NOFOLLOW) < 0 ? -errno : 0)

// int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gid, mode_t mode);
// int touch(const char *path);
// 
// int symlink_idempotent(const char *from, const char *to, bool make_relative);
// 
// int symlink_atomic(const char *from, const char *to);
// int mknod_atomic(const char *path, mode_t mode, dev_t dev);
// int mkfifo_atomic(const char *path, mode_t mode);
// int mkfifoat_atomic(int dir_fd, const char *path, mode_t mode);
// 
// int get_files_in_directory(const char *path, char ***list);
// 
// int tmp_dir(const char **ret);
// int var_tmp_dir(const char **ret);

// int unlink_or_warn(const char *filename);

// #define INOTIFY_EVENT_MAX (sizeof(struct inotify_event) + NAME_MAX + 1)
// 
// #define FOREACH_INOTIFY_EVENT(e, buffer, sz) \
//         for ((e) = &buffer.ev;                                \
//              (uint8_t*) (e) < (uint8_t*) (buffer.raw) + (sz); \
//              (e) = (struct inotify_event*) ((uint8_t*) (e) + sizeof(struct inotify_event) + (e)->len))

// union inotify_event_buffer {
//         struct inotify_event ev;
//         uint8_t raw[INOTIFY_EVENT_MAX];
// };

// int inotify_add_watch_fd(int fd, int what, uint32_t mask);
// int inotify_add_watch_and_warn(int fd, const char *pathname, uint32_t mask);
// 
// enum {
//         CHASE_PREFIX_ROOT = 1 << 0, /* The specified path will be prefixed by the specified root before beginning the iteration */
//         CHASE_NONEXISTENT = 1 << 1, /* It's OK if the path doesn't actually exist. */
//         CHASE_NO_AUTOFS   = 1 << 2, /* Return -EREMOTE if autofs mount point found */
//         CHASE_SAFE        = 1 << 3, /* Return -EPERM if we ever traverse from unprivileged to privileged files or directories */
//         CHASE_TRAIL_SLASH = 1 << 4, /* Any trailing slash will be preserved */
//         CHASE_STEP        = 1 << 5, /* Just execute a single step of the normalization */
//         CHASE_NOFOLLOW    = 1 << 6, /* Do not follow the path's right-most component. With ret_fd, when the path's
//                                      * right-most component refers to symlink, return O_PATH fd of the symlink. */
//         CHASE_WARN        = 1 << 7, /* Emit an appropriate warning when an error is encountered */
// };

// bool unsafe_transition(const struct stat *a, const struct stat *b);

/* How many iterations to execute before returning -ELOOP */
// #define CHASE_SYMLINKS_MAX 32
// 
// int chase_symlinks(const char *path_with_prefix, const char *root, unsigned flags, char **ret_path, int *ret_fd);
// 
// int chase_symlinks_and_open(const char *path, const char *root, unsigned chase_flags, int open_flags, char **ret_path);
// int chase_symlinks_and_opendir(const char *path, const char *root, unsigned chase_flags, char **ret_path, DIR **ret_dir);
// int chase_symlinks_and_stat(const char *path, const char *root, unsigned chase_flags, char **ret_path, struct stat *ret_stat, int *ret_fd);

/* Useful for usage with _cleanup_(), removes a directory and frees the pointer */
// static inline char *rmdir_and_free(char *p) {
//         PROTECT_ERRNO;
// 
//         if (!p)
//                 return NULL;
// 
//         (void) rmdir(p);
//         return mfree(p);
// }
// DEFINE_TRIVIAL_CLEANUP_FUNC(char*, rmdir_and_free);
// 
// static inline char* unlink_and_free(char *p) {
//         if (!p)
//                 return NULL;
// 
//         (void) unlink_noerrno(p);
//         return mfree(p);
// }
// DEFINE_TRIVIAL_CLEANUP_FUNC(char*, unlink_and_free);

// int access_fd(int fd, int mode);

// void unlink_tempfilep(char (*p)[]);

// typedef enum UnlinkDeallocateFlags {
//         UNLINK_REMOVEDIR = 1 << 0,
//         UNLINK_ERASE     = 1 << 1,
// } UnlinkDeallocateFlags;

// int unlinkat_deallocate(int fd, const char *name, UnlinkDeallocateFlags flags);
// 
// int fsync_directory_of_file(int fd);
// int fsync_full(int fd);
// int fsync_path_at(int at_fd, const char *path);
// int fsync_parent_at(int at_fd, const char *path);
// int fsync_path_and_parent_at(int at_fd, const char *path);
// 
// int syncfs_path(int atfd, const char *path);

// int open_parent(const char *path, int flags, mode_t mode);

// int conservative_renameat(int olddirfd, const char *oldpath, int newdirfd, const char *newpath);
// static inline int conservative_rename(const char *oldpath, const char *newpath) {
//         return conservative_renameat(AT_FDCWD, oldpath, AT_FDCWD, newpath);
// }

// int posix_fallocate_loop(int fd, uint64_t offset, uint64_t size);
